WO2005091660A1 - Procede destine a mettre en oeuvre une limitation d'acces au reseau mobile - Google Patents

Procede destine a mettre en oeuvre une limitation d'acces au reseau mobile Download PDF

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Publication number
WO2005091660A1
WO2005091660A1 PCT/CN2005/000336 CN2005000336W WO2005091660A1 WO 2005091660 A1 WO2005091660 A1 WO 2005091660A1 CN 2005000336 W CN2005000336 W CN 2005000336W WO 2005091660 A1 WO2005091660 A1 WO 2005091660A1
Authority
WO
WIPO (PCT)
Prior art keywords
access
access technology
plmn
network
user terminal
Prior art date
Application number
PCT/CN2005/000336
Other languages
English (en)
Chinese (zh)
Inventor
Jie Wang
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to US10/591,739 priority Critical patent/US7920846B2/en
Publication of WO2005091660A1 publication Critical patent/WO2005091660A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service

Definitions

  • the present invention belongs to the field of mobile communication technology, and in particular, relates to a method for implementing mobile network access restriction. Background of the invention
  • the method for implementing the access restriction is also very mature.
  • the method obtains the user's home GSM network by analyzing the user identifier such as the global mobile user identity (IMSI) of the mobile user or the mobile station integrated service digital network number (MSISDN).
  • IMSI global mobile user identity
  • MSISDN mobile station integrated service digital network number
  • PLMN public land mobile network
  • the mobile user terminal when a mobile user terminal of the first GSM network roams into the second GSM network, the mobile user terminal initiates a location registration request to the second GSM network.
  • the second GSM network obtains the PLMN number of the user's home network by analyzing the user identity of the mobile user terminal, thereby determining that the network to which the user belongs is the first GSM network. Therefore, a location registration rejection message is returned to the mobile user terminal. Carry the cause value "The PLMN number is not allowed".
  • the mobile user terminal After receiving the rejection message, the mobile user terminal writes the PLMN number in the cause value carried in the message to the "Access Prohibited Access" in the mobile terminal user identification module (SIM).
  • SIM mobile terminal user identification module
  • PLMN list the list is still stored in the SIM card when the mobile terminal is turned off or the SIM card is removed; 6
  • the list of blocked PLMNs, mobile user terminals can implement access restrictions.
  • the mobile user terminal automatically selects the PLMN network mode, if the PLMN number of the selected network is in the list of "PLMNs forbidden to access", Then the mobile user terminal no longer initiates a location registration request to the GSM network corresponding to the PLMN number, so as to automatically implement access restrictions; when the mobile user terminal works in the manually selected PLMN network mode, if the mobile user terminal successfully accesses a certain PLMN Network, determine whether the PLMN number of the network exists in the list of "PLMNs forbidden to access", and if so, delete the PLMN number from the list of "PLMNs forbidden to access", so that the mobile user terminal automatically When the PLMN network mode is selected, a location registration request can be initiated to the PLMN network. This method can automatically prohibit a mobile user terminal from initiating
  • the main object of the present invention is to provide a method for implementing mobile network access restriction, which can distinguish different types of networks that share a PLMN number and implement access restriction for different types of networks.
  • the present invention provides a method for implementing mobile network access restriction, The method includes the following steps:
  • Step A When the mobile user terminal selects the PLMN network, it queries the list of forbidden PLMNs and access technology identifiers stored by the terminal itself;
  • Step B The mobile user terminal determines whether the selected PLMN network and access technology are in the list of forbidden PLMNs and access technology identifications. If so, the mobile user terminal does not send the information to the core network device MSC / SGSN. Location update request; otherwise, the mobile user terminal sends a location update request to the core network device MSC / SGSN to implement access to the network.
  • the method further includes generating the PLMN and access technology identification list forbidden to access, which specifically includes:
  • Step C1 The mobile user terminal sends a location update request to the core network device MSC / SGSN;
  • Step C2 If the MSC / SGSN determines that the user is not allowed to access the service network through the current access network, a location update rejection message is returned to the mobile user terminal, and the message carries a reason value for rejecting the location update;
  • Step C3 The mobile user terminal updates the cause value in the rejection message according to the location, and records the PLMN number and the access technology identifier of the access network that are denied access in the PLMN and access technology identification list for which access is prohibited.
  • Step C3 includes:
  • the mobile user terminal analyzes the cause value in the location update rejection message. If the cause value is "PLMN current access technology is not allowed", the mobile user terminal records the user in the PLMN and access technology identification list for which access is prohibited The PLMN number and access technology identification of the access network where the mobile terminal is located; if the cause value is "PLMN not allowed", the mobile user terminal records the PLMN number and all Access technology identification.
  • the method further includes modifying the PLMN and the access technology standard forbidden to access.
  • the contents of the identification list include:
  • the mobile user terminal If the mobile user terminal successfully accesses a PLMN by using an access technology in the manually selected PLMN network mode, it is determined whether the list of prohibited access PLMNs and access technology identifiers stored in the mobile user terminal includes The PLMN number of the accessed network and the corresponding access technology identifier, and if so, delete the access technology identifier corresponding to the PLMN number from the list.
  • the list of PLMNs and access technology identifiers for which access is prohibited includes:
  • At least one set of access restriction rule data wherein each set of access restriction rule data occupies five bytes, the first to third bytes are used to store the PLMN number, and the fourth and fifth bytes are respectively used to store The access technology identification.
  • the fourth and fifth bytes respectively used to store the access technology identifier include: one bit in each byte represents an access technology, and a bit of 0 represents that the access technology is an allowed access technology. Incoming access technology, this bit is 1 to indicate that the access technology is an access technology that prohibits access.
  • recording the access technology identifier in the list of prohibited access PLMN and access technology identifiers is: setting a bit used to represent the access technology to 1, the access prohibited PLMN and access technology
  • the deletion of the access technology identification from the identification list is: Set the bit used to represent the access technology to 0.
  • the PLMN network is a GSM network, a WCDMA network, a WLAN network, or a Bluetooth network.
  • the present invention uses the information in the list of forbidden PLMN and access technology identifiers stored in the SIM / third generation wireless communication system user identification module (USIM) to implement network access for the PLMN number and the access technology identifier.
  • the purpose of restriction thereby meeting the needs of mobile operators to restrict access to different access technologies.
  • the method can implement access restriction by using different restriction rules for different types of access networks, and in the process of implementing access restriction In China, the modifications to the current network and user terminals are small and easy to implement, which can fully meet the needs of operators to restrict access.
  • FIG. 1 is a flowchart for implementing the present invention.
  • Figure 2 is a flowchart of generating a PLMN and access technology identification list forbidden to access.
  • FIG. 3 is a schematic diagram of the 5n-1th byte of the access restriction rule data according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the 5nth byte of the access restriction rule data according to an embodiment of the present invention.
  • the present invention is a method for implementing mobile network access restriction. This method adds an access technology identifier to the "PLMN forbidden to access" list in the prior art, and uses the PLMN number and the access technology identifier in the table to Access restrictions are implemented to achieve the need to implement access restrictions for different types of networks.
  • the present invention is implemented by using the following steps:
  • Step 101 The mobile user terminal enters the automatically selected PLMN network mode, and queries the list of forbidden PLMNs and access technology identifications stored in the SIM USIM on the mobile user terminal;
  • Step 102 The mobile user terminal determines whether the automatically-selected PLMN access network and access technology exist in the queried access-prohibited PLMN and access technology identification list. If yes, it indicates that the selected PLMN access network is prohibited. If the network is accessed, the mobile user terminal does not initiate a location update request to the MSC / SGSN device in the core network, and the process ends; if no, it indicates that the selected PLMN access network is a network that is allowed to access, then execute Step 103; Step 103: The mobile user terminal initiates a location update request to the core network equipment mobile switching center (MSC) / serving general wireless packet service (SGSN) through the selected PLMN access network, and finally realizes roaming of the mobile user terminal.
  • MSC core network equipment mobile switching center
  • SGSN serving general wireless packet service
  • the PLMN and access technology identification list forbidden in step 101 and step 102 are generated through the following steps:
  • Step 201 The mobile user terminal sends a location update request to the core network device MSC / SGSN through the access network.
  • Step 202 If the core network device MSC / SGSN determines that the user is not allowed to access the service network through the current access network, a location update rejection message is returned to the mobile user terminal, and the message carries a reason value for rejecting the location update.
  • the cause value may be selected from two types: "PLMN is not allowed” or "PLMN current access technology is not allowed” as the cause value, where the "PLMN current access technology” Not allowed, the cause value is a newly added cause value in the location update reject message for implementing the present invention;
  • Step 203 After the user mobile terminal receives the location update rejection message, according to the cause value in the message, the PLMN number of the access network and the access technology identifier that are denied access are recorded in the SIM / USIM forbidden access of the mobile user terminal.
  • the list of PLMNs and access technology identifiers is included in the list; the list of PLMNs and access technology identifiers that are forbidden to access is an extended list relative to the list of "PLMNs forbidden to access" in the prior art, and Table 1 shows the implementation. An embodiment of the list;
  • the table includes a PLMN number and an access technology identifier.
  • a PLMN number and a corresponding access technology identifier constitute a set of access restriction rule data in the table, which is used to indicate a PLMN number that is forbidden to access and
  • the access technology in the table includes at least one set of access restriction rule data, and each set of access restriction rule data occupies 5 bytes, where the first to third bytes are used to store the PLMN number, and the fourth The fifth to fifth bytes are used to store the access technology identifier.
  • each of the eight bits of each byte is used to represent an access technology. If it is 0, it means that the access technology corresponding to this bit is an access technology that allows access.
  • the 8th bit of the byte represents UTRAN ( WCDMA wireless access technology), if this bit is 1, it means WCDMA wireless access technology Forbidden access technology, if this bit is 0, it means that WCDMA wireless access technology is allowed access technology, and the remaining 7 bits of this byte are RFUs, which are used to reserve these 7 bits for possible future access.
  • the 8th bit of the byte represents the GSM wireless access technology.
  • the bit indicates that the GSM wireless access technology is a prohibited access. If the bit is 0, it means that the GSM wireless access technology is an allowed access technology.
  • the 7th bit of this byte represents the GSM COMPACT wireless access technology. If the bit is 1, it indicates the GSM COMPACT wireless access technology. The access technology is a forbidden access technology. If this bit is 0, it means that the GSM COMPACT wireless access technology is an allowed access technology.
  • the remaining 6 bits of this byte are RFUs, which are used to reserve the 6 bits for possible future use. The use of the access technology that appears; wherein, in step 203, the mobile user terminal records the access network PLMN number and the access technology identification that are denied access in the PLMN and access technology identification list forbidden for specific implementation for:
  • Mobile user terminal refuses to update the location after receiving the core network equipment MSC / SGSN After the message is analyzed, the cause value in the message is analyzed. If the cause value is "PLMN current access technology is not allowed", the mobile user terminal writes the PLMN number and the access technology identifier of the access network where the user's mobile terminal is located. In the list of forbidden PLMNs and access technology identifiers; if the cause value is "PLMN is not allowed", it indicates that under the access network represented by the PLMN number, all types of access technologies are not allowed to be connected.
  • the mobile user terminal records the PLMN number in the access-prohibited PLMN and access technology identifier list, and all access technology identifiers corresponding to the PLMN number in the list are 1. Used to indicate that the PLMN network does not allow all types of access network access;
  • the contents of the list of forbidden PLMNs and access technology identifiers can also be modified.
  • the specific implementation of the modification of the list is:
  • the mobile user terminal When the mobile user terminal successfully connects to a PLMN by using an access technology in the manually selected PLMN network mode, it is determined whether the list of prohibited access PLMNs and access technology identifiers stored in the mobile user terminal includes the The PLMN number of the accessed network and the corresponding access technology identifier. If so, in the list, set the bit corresponding to the access technology in the access technology identifier corresponding to the PLMN number to 0 to use the The access technology identifier is deleted from the list of access-prohibited PLMNs and access technology identifiers. After the bit is set to 0, it is determined whether all bits in each byte in the access technology identifier corresponding to the PLMN number are Both are 0.
  • each access technology corresponding to the PLMN number is not an access prohibited technology
  • the PLMN number and the PLMN are listed.
  • a group of access restriction rule data of a total of 5 bytes corresponding to the access technology identifier is deleted, otherwise, the group of access restriction rule data is retained.
  • the embodiments described above are only specific methods for implementing mobile network access restrictions for GSM networks and WCDMA networks.
  • the present invention can also implement access restrictions for other networks such as WLAN and Bluetooth.
  • the specific implementation process is as described above. Examples are similar.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé destiné à mettre en oeuvre une limitation d'accès au réseau mobile. Ce procédé comprend les étapes suivantes: (A) lors de la sélection d'un réseau PLMN, un terminal d'abonné mobile consulte la liste d'identification de réseaux PLMN à accès interdit & de techniques d'accès qui est réservée par le terminal lui-même; et (B) le terminal d'abonné mobile détermine si le réseau PLMN sélectionné et la technique d'accès sont dans la liste d'identification de réseaux PLMN à accès interdit & de techniques d'accès. Si tel est le cas, le terminal d'abonné n'envoie pas de demande de mise à jour de position au dispositif de réseau central MSC/SGSN, et si tel n'est pas le cas, le terminal d'abonné mobile envoie une demande de mise à jour de position au dispositif de réseau central MSC/SGSN en vue de l'établissement d'un accès au réseau. Ce procédé peut faire appel à différentes règles de limitation pour établir un accès selon différents types de réseaux d'accès. En outre, pendant la mise en oeuvre de la limitation d'accès, la modification du réseau en cours et du terminal d'abonné est petite et facile à réaliser. Ainsi, ce procédé est suffisant pour satisfaire à la nécessité pour l'opérateur de mettre en oeuvre une limitation d'accès.
PCT/CN2005/000336 2004-03-19 2005-03-18 Procede destine a mettre en oeuvre une limitation d'acces au reseau mobile WO2005091660A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/591,739 US7920846B2 (en) 2004-03-19 2005-03-18 Method for implementing access restriction of mobile networks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200410029476.4 2004-03-19
CN200410029476.4A CN1671240A (zh) 2004-03-19 2004-03-19 一种实现移动网络接入限制的方法

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